Abstract

Vitaly Sergeevich Ivanov, Anton Sergeevich Yegorov, Grant Rantovich Allakhverdov and Vladimir Viktorovich Men'shikov

DOI : http://dx.doi.org/10.13005/ojc/340128

In present work, a number of polyimides contained polysiloxane and crown-ether moiety in the main chain were synthesized. Solubility in organic solvents and film-forming ability were investigated. Prepared polymers are insoluble in low boiling solvents and highly soluble in m-cresol, NMP and DMSO. Strong films were prepared with NTDA monomer, with the exception of the PI of the composition BNTDA-BDSA. Thermal properties of films were studied in comparison with corresponding powders. All prepared films demonstrated a sufficiently high thermal stability and suitable for design of low-temperature fuel cells (up to 100°C) and can be used for medium temperature fuel cells (140-200°C). The mechanical properties of the prepared strong films were also examined.

Proton-Exchange (Electrolytic) Polymer Membrane (PEM); Polyimides; Sulfonated Polyimide (SPI); Naphthalic Polyimides; Poly(Imide-Siloxane); Crown-Ether Inclusion

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